java - 无法在 Selenium 中截取屏幕截图

Question

我试图为每次失败事件捕获屏幕截图并编写以下代码，但这不起作用。

public class TestFile {

    WebDriver driver = new FirefoxDriver();

    @Test   
    public void Testone(){
        driver.get("http://www.google.com/");           
    }

    @AfterMethod(alwaysRun=true)
    public void catchExceptions(ITestResult result){
        System.out.println("result"+result);
        String methodName = result.getName();
        System.out.println(methodName);

        if(!result.isSuccess()){         
            try { 
                File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
                FileUtils.copyFile(scrFile,new File("C:\\screenshot2.png" ));
            } catch (IOException e1) {
                e1.printStackTrace();
            }       
        }
    }
}

---

这里失败了

File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);

---

堆栈跟踪:

[TestNG] Running:
C:\Documents and Settings\537310\Local Settings\Temp\testng-eclipse-1576306112\testng-customsuite.xml

result[TestResult name=Testone status=FAILURE method=TestFile.Testone()[pri:0, instance:com.example.tests.TestFile@1b34126] output={null}]
FAILED CONFIGURATION: @AfterMethod catchExceptions([TestResult name=Testone status=FAILURE method=TestFile.Testone()[pri:0, instance:com.example.tests.TestFile@1b34126] output={null}])
net.sf.cglib.core.CodeGenerationException: java.lang.IllegalAccessException-->Class org.openqa.selenium.remote.Augmenter$CompoundHandler can not access a member of class org.openqa.selenium.firefox.FirefoxDriver with modifiers "protected"
at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235)

进口 list :

package com.example.tests;
import org.testng.annotations.Test;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import org.apache.commons.io.FileUtils;
import org.junit.Before;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.remote.Augmenter;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.testng.ITestResult;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;  

Answer 1

你分享的stacktrace不是stacktrace，但我认为是testng日志。
您提供的示例确实有效。我只是让测试失败了，因为在 @AfterMethod 中只有测试失败时才会截取屏幕截图:if(!result.isSuccess())
然后当我再次运行这个例子时，我得到:
java.io.FileNotFoundException: C:\screenshot2.png (访问被拒绝)
然后我将图片的位置更改为在D:上，权限正确，并且它最终成功了，我可以看到截图。

干杯

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.ITestResult;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.Test;

public class TestFile {

    WebDriver driver = new FirefoxDriver();

    @Test
    public void Testone() {

        driver.get("http://www.google.com/");
        assert false;

    }

    @AfterMethod(alwaysRun = true)
    public void catchExceptions(ITestResult result) {
        System.out.println("result" + result);
        String methodName = result.getName();
        System.out.println(methodName);

        if (!result.isSuccess()) {

            try {

                File scrFile = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
                FileUtils.copyFile(scrFile, new File("C:\\screenshot2.png"));
            } catch (IOException e1) {
                e1.printStackTrace();
            }

        }
    }
}